postMessage_dup_transfer_objects.htm (1108B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <title> postMessage with duplicate transfer objects raises DataCloneError exception </title> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 </head> 8 <body> 9 <div id=log></div> 10 11 <div style="display:none"> 12 <iframe width="70%" onload="PostMessageTest()" src="./support/ChildWindowPostMessage.htm"></iframe> 13 </div> 14 15 <script> 16 17 18 var description = "Test Description: " + 19 "postMessage with duplicate transfer objects raises DataCloneError exception."; 20 21 var DATA = "ports"; 22 var TARGET = document.querySelector("iframe"); 23 24 function PostMessageTest() 25 { 26 test(function() 27 { 28 assert_throws_dom("DATA_CLONE_ERR", TARGET.contentWindow.DOMException, function() 29 { 30 assert_own_property(window, "MessageChannel", "window"); 31 var channel = new MessageChannel(); 32 TARGET.contentWindow.postMessage(DATA, "*", [channel.port1, channel.port1]); 33 }); 34 }, description); 35 } 36 </script> 37 </body> 38 </html>